ML20153G534
| ML20153G534 | |
| Person / Time | |
|---|---|
| Site: | Grand Gulf  |
| Issue date: | 08/31/1988 |
| From: | SYSTEM ENERGY RESOURCES, INC. |
| To: | |
| Shared Package | |
| ML20153G496 | List: |
| References | |
| NUDOCS 8809080198 | |
| Download: ML20153G534 (2) | |
Text
61 EMERGENCY CORE COOLING SYSTEMS 3/4.5.3 SUPPRESSION POOL LIMITING CONDITION FOR OPERATION 3.5.3 The suppression pool shall be OPERA 8LE:
a.
In OPERATIONAL CONDITION 1, 2 or 3 with a contained water volume of at l
1 east 135,291 ft*, equivalent to a level oi 18'4-1/12."
b.
In CPERAT10NAL CONDITION 4 or 5' with a contained water volume of at least 93,600 ft, equivalent to a level of 12'8", except that the 3
suppression pool level may be less than the limit or may be drained provided that:
1.
No operations are performed that have a potential for draining the reactor vessel,
,(i
- 2, The reactor mode switch is locked in the Shutdown or Refuel
- position, 3.
The condensate storve tank contains at least 170,000 available gallons of water, equivalent to a level of 18', and j
4.
The HPCS system is OPERA 8LE per Specification 3.5.2 with an OPERA 3LE i
flow path capable of taking suction from the condensate storage tank l
ap and transferring the water through the spray sparger to the reactor vessel.
APPLICABILITY:
OPERATIONAt, CONDITIONS 1, 2, 3, 4 and 5*.
s -
3 ACTION:
!l a.
In CPERATIONAL, CON 0! TION 1, 2 or 3 with the suppression pool water level less than the above limit, restore the water level to within the limit within I hour or be in at least NOT SHUT 00Wh within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and in COLD SHUT 00WN within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, b.
In OPERATIONAL CONDITION 4 er 5' with the suppression pool water
{ll 1evel less than the above Itait er drained and the above required 4
conditions not satisfied, suspend CORE ALTERATIONS and all opera-l tions that have a potential for draining the reactor vessel and
.o lock the reactor mode switch in the Shutdown position. Establish
- g SE'.0NDARYl0NTAlhWINT_ INTEGRITY within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />, t%en'ohra' ting 9l go-(under thIs ACTION, (e cavity cannoT be'drainedf--
[j a
See Specification 3.6.3.1 for pressure suppression regulresents, u
a i
The suppression pool is not required to be OPERA 8LE provided that the reactor vessel head is removed, the cavity is flooded or being flooded from the 53 suppression pool, the reactor cavity :M t tr:f: 9eae+ gate / '- th: ;;:-
x E<
is
- nt:' r:-t ; :1 : ; removed when the cavity is flooded, and the water level F
is maintained within the limits of Specification 3.9.8 and 3.9.9.
E ha.
r GRANO GULF-UNIT 1 3/4 5 8 Amenhent No. 42,
(
Ps.66/oi j
u t-i EMERGENCY COR! C00LlH'G SYSTEMS 3/4 5.2 ECCS - SNUT00VN k--
,L1HITING CONDITION FOR OPERATION 3.5.2 At least two of the following shall be OPERABLE:
a.
The low pressure core spray (LPC5) system with a flow path capable of taking suction from the suppression pool and transferring the water through the spray sparger to the reactor vessel.
b.
Low pressure coolant injection (LPCI) subsystes "A" of the RNA system with a flev path capable of taking suction from the suppression pool upon being manually realigned and transferring the water to the reactor vessel.
c.
Low pressure coolant injection (t PCI) subsystem "B" of the RHR syster.
with a flow path capable of taking suction from the suppression pool upon being manually realigned and transferring the water to the reactor vessel.
)
d.
Low pressure coolant injection (LPCI) subsystem "C" of the RHR systec
<p with a flow path capable of takin'; suction from the suppression peo) t upon being r,anually realigned and transferring the water to the f
reactor Vtsstl.
N=
e.
The high pressure core spray (HPCS) system with a flow path capable l
of taking suct. ion from one of the following water sources and trans-c' ferring the water through the spray sparger to the reactor vessel:
(
1.
From the suppression pool, or g
k 2.
When the suppression pool level is less than the limit or is v(
drained, from the condensate storage tank containing at least 170,000 available gallons of water, equivalent to a level of s
18 feet, j
APPLICASILITY: OPERATIONAL CONDITION 4 and 5*,
t ACTION:
I a.
With one of the above required subsystems / systems inoperable, restore et least two subsystems / systems to CPERASt,E sta,tus within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> or suspend all operations that have a potential for draining the reagr g $i 4
vesse).
% pr:thn: Of !;::!'!:st':- L O.' r: n:t d 'et.-
5 e,
b.
With both of the above required subsystees/systees inoperable, suspend CORE AI.TERATIONS and all operations that have a potential for draining the reactor vessel.
Restore at least one subsystem / system to CPERAELE status within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> er establish SECONDARY CONTAINMENT INTEGRITY 1
within the nef 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> %en operating under this ACTION, the'cavitB gb bot be dfathedj='- ~
.i v
v-The ECC5 is not required to be OPERABLE provided that the reactor vessel heae i
'is removed, the cavity is ficoded, the reactor cavity-and tentf:r n:1 gate /
is 'ir th; u;;;r ::nt:f n :nt ;;b! :. :- removed, and water level is maintained within the limits of Specifications 3.9.8 and 3.9.9.
t
- c;t h- !: :;;ik:ti: u*' !!PtG ":- t'e ter-f "e# H 'a; ria;e GRAND GULF-UNIT 1 3/4 5 6 Amen: ment Nc, C, _
....